The integral is .
Solve the integral by using partial fractions.
\Equate the coefficients.
Equate the constants.
\Add the equations (2) and (3).
\Substitute the value in the equation (2).
Substitute the values and
in equation (1).
.
Consider then
.
Consider then
.
Substitute the corresponding values in the above equation.
\Substitute and
in the above equation.
.
.